Product Name:Pressure Gauge For general use, black steel case, plastic rotating window, brass internal and connection. Product Name:iron case with chrome plated Pressure Gauge 1) Dial size: 1.5, 2, 2.5, 3, 3.5, 4,62) Connection size: 1/8, 1/4, 1/2, 3/83) Connection threads: npt, bsp (g, pf), bspt (zg, pt)4) Case material: black steel, plastic, chrome plated steel, stainless steel,iron5) Material ...